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Clues that decaying leaves enrich Arctic air with ice nucleating particles
JournalArticle (Originalarbeit in einer wissenschaftlichen Zeitschrift)
ID 3438419
Author(s) Conen, Franz; Stopelli, Emiliano; Zimmermann, Lukas
Author(s) at UniBasel Conen, Franz
Zimmermann, Lukas
Stopelli, Emiliano
Year 2016
Title Clues that decaying leaves enrich Arctic air with ice nucleating particles
Journal Atmospheric environment
Volume 129
Pages / Article-Number 91-94
Abstract Decaying leaves from Arctic regions have previously been reported to produce large numbers of ice nucleating particles (IN). Their atmospheric relevance is unclear. Our initial observations at a coastal mountain observatory in northern Norway reveal a tripling in concentrations of IN active at −15 įC (IN-15) in oceanic air after about one day of passage over land (from 1.7 and 4.9 IN-15 m−3, to 9.6 and 12.2 IN-15 m−3). Analysis of leaf litter collected near the observatory supports the earlier report of numerous IN associated with leaf litter on the ground (2 ⋅ 102 IN-15 μg−1 litter particles < 5 μm). Together, both findings suggest that decaying leaves are a strong emission source of IN to the Arctic boundary layer.
Publisher Pergamon Press
ISSN/ISBN 1352-2310
Full Text on edoc No
Digital Object Identifier DOI 10.1016/j.atmosenv.2016.01.027
ISI-Number WOS:000370886000010
Document type (ISI) Article

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